
威(wei)海力建(jian)液壓設(she)備(bei)廠
經營(ying)模式:生產加(jia)工
地(di)址:山東(dong)省威海市(shi)羊亭孫家灘工業園
主營:液壓缸,油(you)缸,液壓系統(tong)
業務熱線:
QQ:3049278720
液壓缸結構基本上可(ke)以分(fen)為缸筒和(he)(he)缸蓋、活塞和(he)(he)活塞桿、密(mi)封裝置(zhi)、緩沖裝置(zhi)和(he)(he)排氣裝置(zhi)五(wu)個部分(fen)。今天威(wei)海(hai)力建小(xiao)編著(zhu)重帶著(zhu)大(da)家了解一下缸筒和(he)(he)缸蓋。
缸筒和缸蓋
一般(ban)來說,缸(gang)筒(tong)(tong)和(he)缸(gang)蓋的(de)(de)結(jie)構形(xing)式和(he)其(qi)使用(yong)(yong)的(de)(de)材(cai)料有(you)關。工(gong)(gong)(gong)作壓力(li)p<10MPa時(shi)(shi),使用(yong)(yong)鑄鐵;p<20MPa時(shi)(shi),使用(yong)(yong)無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管;p>20MPa時(shi)(shi),使用(yong)(yong)鑄鋼(gang)(gang)(gang)或(huo)鍛鋼(gang)(gang)(gang)。法蘭連(lian)(lian)接(jie)式,結(jie)構簡單(dan),容易(yi)(yi)加(jia)(jia)工(gong)(gong)(gong),也容易(yi)(yi)裝拆,但外(wai)形(xing)尺寸(cun)和(he)重(zhong)量都(dou)較(jiao)(jiao)大,常(chang)用(yong)(yong)于(yu)鑄鐵制的(de)(de)缸(gang)筒(tong)(tong)上。半環連(lian)(lian)接(jie)式,它(ta)的(de)(de)缸(gang)筒(tong)(tong)壁(bi)部(bu)因開了環形(xing)槽(cao)而削弱了強度,為此有(you)時(shi)(shi)要加(jia)(jia)厚(hou)缸(gang)壁(bi),它(ta)容易(yi)(yi)加(jia)(jia)工(gong)(gong)(gong)和(he)裝拆,重(zhong)量較(jiao)(jiao)輕,常(chang)用(yong)(yong)于(yu)無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管或(huo)鍛鋼(gang)(gang)(gang)制的(de)(de)缸(gang)筒(tong)(tong)上。螺(luo)紋連(lian)(lian)接(jie)式,它(ta)的(de)(de)缸(gang)筒(tong)(tong)端部(bu)結(jie)構復(fu)雜(za),外(wai)徑加(jia)(jia)工(gong)(gong)(gong)時(shi)(shi)要求(qiu)保證內外(wai)徑同心(xin),裝拆要使用(yong)(yong)工(gong)(gong)(gong)具,它(ta)的(de)(de)外(wai)形(xing)尺寸(cun)和(he)重(zhong)量都(dou)較(jiao)(jiao)小,常(chang)用(yong)(yong)于(yu)無(wu)(wu)縫(feng)鋼(gang)(gang)(gang)管或(huo)鑄鋼(gang)(gang)(gang)制的(de)(de)缸(gang)筒(tong)(tong)上。拉桿連(lian)(lian)接(jie)式,結(jie)構的(de)(de)通(tong)用(yong)(yong)性大,容易(yi)(yi)加(jia)(jia)工(gong)(gong)(gong)和(he)裝拆,但外(wai)形(xing)尺寸(cun)較(jiao)(jiao)大,且較(jiao)(jiao)重(zhong)。焊接(jie)連(lian)(lian)接(jie)式,結(jie)構簡單(dan),尺寸(cun)小,但缸(gang)底處內徑不(bu)易(yi)(yi)加(jia)(jia)工(gong)(gong)(gong),且可(ke)能引起變形(xing)。





修復工藝:
1、用(yong)氧(yang)-乙que火焰烤(kao)劃傷部位(掌握(wo)溫度,避免表面退(tui)火),將(jiang)常年滲金屬表面的油烤(kao)出來,烤(kao)到(dao)沒有(you)火花(hua)四(si)濺。
2、將劃(hua)傷部位(wei)用角(jiao)磨(mo)(mo)機表(biao)面處理,打(da)磨(mo)(mo)深度1毫米以上(shang),并沿(yan)導(dao)軌打(da)磨(mo)(mo)出溝(gou)槽(cao),燕尾槽(cao)。劃(hua)傷兩端(duan)鉆孔加深,改變(bian)受力情況。
3、用脫(tuo)脂棉蘸丙(bing)tong或無水(shui)乙醇將表面清洗(xi)干凈(jing)。(威海力建液壓設(she)備廠)
零部件加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du)的影響問題(ti),在液(ye)壓缸(gang)的制造(zao)過(guo)程(cheng)中(zhong)應嚴格控(kong)制缸(gang)體(ti)內(nei)壁和活塞(sai)桿表面加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du),特別是幾何精(jing)度(du)(du),尤(you)其直(zhi)線(xian)(xian)(xian)度(du)(du)是關(guan)鍵,在國內(nei)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝中(zhong),活塞(sai)桿表面的加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)基本上是車后磨削,保證(zheng)直(zhi)線(xian)(xian)(xian)度(du)(du)問題(ti)不大,但對于(yu)缸(gang)體(ti)內(nei)壁的加(jia)(jia)(jia)(jia)工(gong)(gong)(gong),其加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方(fang)法(fa)很(hen)多,有鏜(tang)(tang)削-滾壓、鏜(tang)(tang)削-珩(heng)磨、直(zhi)接珩(heng)磨等,但由(you)于(yu)國內(nei)材料(liao)的基礎水平較國外有差距,管(guan)材坯料(liao)直(zhi)線(xian)(xian)(xian)度(du)(du)差,壁厚(hou)不均勻(yun)、硬度(du)(du)不均勻(yun)等因素,往(wang)(wang)往(wang)(wang)直(zhi)接影響缸(gang)體(ti)內(nei)壁加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)后的直(zhi)線(xian)(xian)(xian)度(du)(du),因此建(jian)議(yi)采用鏜(tang)(tang)削-滾壓、鏜(tang)(tang)削-珩(heng)磨工(gong)(gong)(gong)藝,如直(zhi)接珩(heng)磨,則必須首先提(ti)高管(guan)材坯料(liao)的直(zhi)線(xian)(xian)(xian)度(du)(du)。
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在允許的(de)(de)情(qing)況(kuang)下,液(ye)壓缸(gang)(gang)的(de)(de)缸(gang)(gang)體壁(bi)厚安全系數盡量選大一(yi)些(xie),使缸(gang)(gang)體厚壁(bi)增加,特別(bie)是高壓工況(kuang)下使用的(de)(de)油缸(gang)(gang),以減小(xiao)油壓下的(de)(de)缸(gang)(gang)體變形,變形后的(de)(de)缸(gang)(gang)體也會引起液(ye)壓缸(gang)(gang)低速爬行。